{"id":"CVE-2021-26367","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-26367","generatedAt":"2026-10-27T22:24:36.091Z","title":"A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.","description":"A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.","published":"2024-08-13T17:15:17.000Z","lastModified":"2026-06-17T03:43:15.000Z","status":"Analyzed","sourceIdentifier":"psirt@amd.com","cvss":{"version":"3.1","score":6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H"},"cwe":[],"affected":["amd/radeon software","amd/ryzen 9 5980hx firmware","amd/ryzen 3 3300u firmware","amd/ryzen 3 3350u firmware","amd/ryzen 5 3450u firmware","amd/ryzen 5 3500u firmware","amd/ryzen 5 3500c firmware","amd/ryzen 5 3550h firmware","amd/ryzen 5 3580u firmware","amd/ryzen 7 3700u firmware","amd/ryzen 7 3700c firmware","amd/ryzen 7 3750h firmware","amd/ryzen 7 3780u firmware","amd/athlon gold 3150c firmware","amd/athlon gold 3150u firmware","amd/athlon pro 3145b firmware","amd/athlon silver 3050c firmware","amd/athlon silver 3050u firmware","amd/athlon pro 3045b firmware","amd/athlon silver 3050e firmware","amd/athlon gold pro 3150g firmware","amd/athlon gold 3150g firmware","amd/athlon gold pro 3150ge firmware","amd/athlon pro 300ge firmware","amd/ryzen 3 4300ge firmware","amd/ryzen 5 4600ge firmware","amd/ryzen 7 4700ge firmware","amd/ryzen 3 4300g firmware","amd/ryzen 5 4600g firmware","amd/ryzen 7 4700g firmware","amd/ryzen 3 5300ge firmware","amd/ryzen 3 5300g firmware","amd/ryzen 5 5600ge firmware","amd/ryzen 5 5600g firmware","amd/ryzen 7 5700ge firmware","amd/ryzen 7 5700g firmware"],"epss":{"score":0.00157,"percentile":0.04855,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4004.html","tags":["Vendor Advisory"],"source":"psirt@amd.com"},{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.html","tags":["Vendor Advisory"],"source":"psirt@amd.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26367","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}